Closure mechanism for retort doors



20, 1931. J F, PARKER 1,827,830

CLOSURE MECHANISM FOR RETORT DOORS Filed June 4, 1927 Inventor if f wzfivz:

b iasx ww Patented Oct, 20, 1931 i zza-ea JACK roan-HAM PARKER, or oonsALL, nnenannnssienon'ro tow mmmmma o GARBONISATION LIMITED, oELonnoN ENeLAnn msv'm MECHANISM "Fora nn'ronrnooR-s' Ap lication-filed inn-e a, 1927, Serial no. meant in. GreatiBritain nine 7, 192e.'

This invention relates to doors for closing the lower ends of retorts used in the distillation of carbonaceous substances and the manufacture of coal-gas and to like appa- L ratus,-'an'd has-for its objectto provide a purpose-of inspection orrepair.-

"According to the invention the door is hinged in mountings such that when in the closed position the door is free of the mountings and---is'maintained upon the seat by pressure applied at one or more positions at the 'middle ofthe'door or at a position or positions between the middle and the edges According to the invention,- moreover; the door is hinged to a member by which pres-V sure is, a'pplied 'upon the door. The said membermay for this purpose be pivoted and provided with lugs for the reception of the pivot pins of the door and with an "arm the outer end of which engages e e #0 pp pressure thereon. J t o Accordlng to; the 1nvent1on, moreover; the

door .is a vantageously ounted y hinge pinswhich are received into open bearings such that when'the door is closedtheweight of the door isit aken' off the bearings, while when the door is required to be removed the pivot vpins may be lifted directly from the bearings. 1 According t memberupon which the door is hinged is 'carriedby a spindle or pivot which is mounted in be n ear w e e y it m y b rea y "removedL'. .y L

Theinyention further. comprises the details of construction hereinafter described; and it will @be understood that the invention is not limited to such features of construction.v i The inventionis' hereinafter "described'with reference. to the accompanying diagrammatic idrawings in-whichw iFigure -l is.;a sectional elevation offthei lowerpartlof: a retortf'fitted-with a 1 cording'tothe'inventioms"'5 an 1 tion ofthe door, drawn to a smaller scale.

'ing' fitting b up n whiCh the retort ajis o the invention, moreover, the

1 Figure '2 is a crosssection corresponding to Figure 1", on the line 22 Figure 1.

F1gure-3 is a cross section corresponding to Figure 2 but with the deora'ndfother fittings removed." I g "Figure 4isa detail plan view of the pres- Sure arm; v 7 a Figure 5 is across section corresponding to Figure {l on the line 55, Figure 4.

Figure 6-isf'a detail view in elevationl oi the shaft i upon which the pressure armfi is pivoted; and

'* Figures 7 and 8 are views in elevation, taken at right anglesyof suitable gear for'theoperm In carrying the invention intoefl'ect' in" its application to a door adapted forclo sure I of'a series of integrally formed retorts' or a retort of oblong cross sectionand with reference to the accompanying diagrammatic dra wings, theretort a is providedwith a flange a ashort distance from the lowerendi whichflange is received upon a correspond= 'ing flange orseating formed in a supportmounted, the relative disposition beinglsuch vthat the lower extremity of thereto'rt project's below-the seating or flange bKof the "said fitting w i f p [The'said'fitting Y) is conveniently provided as a casing of rectangular or other suitable section and on one. oi the lateral walls'fthere' of there are provided two or more brackets or lugs o, a formed on the upperfaces with semi-cylindrical recesses 0?, [0 to serve as bearings for the-pivot pin or'sha'ftd of the pressure am ,e by which the door fis main; tained inthe closedposition. The'said pres}- sureiarm e is advantageously'formed to project laterally from a sleeve e 'adapted to be fitt ed upon the said pivot pin or shaft-(Z, the v Y 1 /fo rm d ith integral lugs or'brackets I I at or near.the' extremities, which lugs or 1 brackets "e are formed with open 'slo'ts' or recesses e for the reception of pivot pins 7 provided upon the door f.

The door 7 which generally follows the shape of the lower end of the retort a or the retort block, is suitably provided upon the upper face with a machined bearing ridge or rib f adapted to engage the lower face of the extremity of the retort a or of a flange thereon. The lower face of the door 7 is provided on one side with lugs f in which are disposed thepivot pins f adapted to be loosely received into the slots (2 in the brackets or lugs 6 upon the sleeve 6 before referred to."

The lowerface .of-the door f isfurther provided ina determined position, for example,

approximately 'at'themiddle with a boss or bearing surface f with which the outer or free-end-of the pressure arm e may contact and is advantageously strengthenedto resist the pressure applied by the said arm, 6 by means of ribs or webs f radiating from the said boss or bearing surface f towardsthe outeredges of the door 7.

The pivot pin-or spindle d upon which the pressure arm is mounted is conveniently provided at onejend with aQsleeved integrally or V ment with aworm 9 fixed upon a transverse,

11y disposed spindleg carry ng alchain wheel bearinggsurfacer upon the door and to bring-the door: about the pivot pins f intoa otherwise secured thereto, which sleeve serves to receive-the end of'an operatingshaft 9 (Figures? and 8),the' cross section of the boreof the sleved? and of the end of the op- .eratingshaft being suitably formed to prevent relative-rotation.- r L I The shaft '9 extendsoutwardly from the fitting Z2 and has fixedly mounted upon it at the outer end a toothed sector g? in engageg' or-control-wheel by whichiit may be rotated to effect movement of the operatlng shaft g. The outer end of the operatingshaft 9 and the spindleg are supported in bearings provided upon a bracket 9 for fiX- ture in-a convenientposition upon the retort setting. It will be understood thatother a suitable means'for the operation of thedoor may be-provided.

-I1 1the' use of the door t was under;

stood thatwthe door being'in the open position anddependent from the; brackets or lugs 6 upon. the sleeve e before referred-to, rotation of the pivot-pin or shaftdcarryin'g the sleeve 6 serves to revolve the pressure arm 6 in. a direction to engage with the boss or position to close the retort a, a' determined pressurebeing applied upon the operating shaft fixed to the sleeve 03 to maintain the door 7 in the closed position.

i j In the closed position when the applied? under the pressure ofthe arm 6, the

door) is pivotpins 7 upon the door-risefreelyv within the-slots e of; the "lugs or brackets"; and the door I f; isthus entirely free'to con-tact with theretort a and thusflto, close; it 'effectively,

When it becomes necessary for the door to V be dismantled for examination or repair, it will be understood that the door having been moved into the open position it maybe readily removed, while when it is desired to remove the pressure arm or sleeve for inspection or repair it is merely necessary' to wlthdraw the operating shaft-from engagement with the sleeve on the pivot pin or shaft when the'lattercan be readily lifted fromthe to and the sleeve carrying the pressure arm may thenbe'withdrawn from the pivot pin or spindle by relative longitudinal movement to disengage the engaging flat surfaces or square portions. I i i Iclaim: I 1. Closure mechanism for vretort 'doors,

comprising pivotal means upon the door; at

a position nearthe edgethereof, a pivotshaft of'fixedposition near the said edge of the door and beside the outlet aperture of the retort, brackets mounted upon and adapted tojbe rotated on the said pivot shaft and with which said pivotal means are-engaged, a pressure arm in fixed relation to the said brackets and adapted to be rotated therewithabout the pivot shaft, said pressure arm extendinglbeyon d the said brackets and being adapted to contact; with the outer face of the saiddoor, and means for efiecting rotary adj ustment, of

7 pm bearings upon the fittlngs before referred the'said' brackets'and pressure arm about the said bracketson the said door being lowered I from its closed .positioma pressurearm in fixedrelation to the said brackets and adapted to be-ro-tatedztherewith on the-said pivot shaft, the saidarm extending beyond the said brackets andsbeing adapted to :contact with the outer face of. the :said door to press "upon and retain the door'in its position ofclosure, and means for 'efiecting rotary adjustment of the said brackets and pressurearm about the pivot'shaft for opening and closing the said door,, sub'stantially as hereinbefore described. i 3. Closure mechanismfor retort jdoors,

comprising pivot pins mounted beneathland on the outer face of the door near the edge L thereof, a pivot shaftdisposedbeside and beneath the door aperture in fixedapositionf,

. asleeve mounted .upoirthe said pivot shaft, 7 brackets integrally formed r with: the; said sleeve and 'prqvidediwithropen,slots therein with which the said pivot pins respectively engage, a pressure arm also integral with the said sleeve and adapted to extend beyond the said brackets and to contact with the outer and lower face of the door and to press upon and retain the door in its position of closure,

means for supporting the saidshaft for rotation, means for removably holding the said sleeve upon the said splndle, and means for imparting movement to the said shaft to. open or to close the said door, substantially as hereinbefore described. r

4. Closure mechanism for retort doors, comprising pivot pins disposed beneath and on the outer face of the door near the edge 7 thereof, a pivot shaft supported in a position beside and beneath the outlet aperture of the retort, brackets mounted upon and adapted to be rotated upon the pivot shaft, the said brackets ha ving open vslots therein ofsuch form as to provide hook-shaped recesses for v the suspension of the door by the pivot, pins when the door is lowered from its closed position, a pressure arm in fixed relation to the said brackets and adapted to be rotated therewith on the said pivot'shaft, thesaid pressure arm extending beyond the said 7 e brackets and being adapted tocontact With]- the outer face ofthe said door and to press upon and retain the door in its position of t I closure,- and means for efieoting'rotary adjustment of the said brackets and pressure arm about the said pivot shaft for opening and closing the said door, substantially as hereinbefore described.

JACK FORDHAM PARKER. 

